Publications by authors named "Spratt J"

Coronary vasospasm involves constriction of the coronary arteries and has been described after manipulation of the coronary arteries (ie, after stenting or bypass grafting). This report details the case of a 57-year-old man who presented with an endoleak after thoracic endovascular aortic repair. He underwent a frozen elephant trunk procedure and postoperatively had diffuse coronary vasospasm, demonstrated on pre- and post-vasospasm cardiac catheterization.

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Nowadays, consent to use donor bodies for medical education and research is obtained from the body donors and their families before the donation. Recently, the International Federation of Associations of Anatomists (IFAA) published guidelines that could restrict the appearance of cadaveric images in commercial anatomical resources such as textbooks and other educational products. These guidelines state that the donor must expressly consent to using such images for this purpose.

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Article Synopsis
  • The ORBITA-2 trial examined the effectiveness of percutaneous coronary intervention (PCI) in relieving stable angina in patients with coronary artery disease (CAD) compared to a placebo.
  • Participants reported daily angina episodes and underwent tests to measure fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) before being randomized to receive either PCI or a placebo.
  • Results indicated that lower FFR and iFR values were associated with significantly greater improvement in angina symptoms following PCI, suggesting these measurements can help predict the benefits of the intervention.
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  • Coronary access (CA) and percutaneous coronary intervention (PCI) can be more difficult after valve-in-valve transcatheter aortic valve replacement (ViV-TAVR), especially with certain valve designs.* -
  • A study found that the ACURATE neo2 valve led to significantly better success rates for both CA (96.7%) and PCI (98.3%) compared to the Evolut PRO+ valve (75% and 85%, respectively).* -
  • The design differences between the valves affected procedural approaches, with ACURATE neo2 allowing for easier access due to a greater valve-to-anatomy distance.*
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Purpose: Flexor carpi radialis (FCR) tendinitis is an uncommon but important cause of volar radial wrist pain that can be a diagnostic and therapeutic challenge. We present a series of patients with FCR tendinitis managed successfully with an algorithm developed by the senior author.

Methods: A retrospective review of patients treated for FCR tendinitis at a hand practice was performed.

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  • Chronic total occlusion (CTO) in coronary arteries poses significant challenges during percutaneous coronary interventions (PCI), often requiring advanced methods and tools like microcatheters.
  • The BIOMICS study tested a new microcatheter (BioMC) in 100 patients with ischemic symptoms undergoing CTO-PCI, focusing on its ability to successfully facilitate guide wire placement and monitoring for safety issues like cardiac death or myocardial infarction.
  • Results showed a 75% success rate in achieving the primary efficacy goal and only 2% incidence of severe safety events, indicating that the new microcatheter is both effective and safe in treating CTO.
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  • * Coronary computed tomography (CT) angiography plays a crucial role in assessing and quantifying this calcification, which helps in better planning for PCI.
  • * Advances in coronary CT technology and ongoing studies aim to personalize PCI approaches, leading to improved patient outcomes when dealing with calcified coronary lesions.
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We present a case of cardiogenic shock secondary to refractory polymorphic ventricular tachycardia associated with coronary ischemia resulting in cardiac arrest. Following the return of spontaneous circulation, the patient was cannulated for peripheral venoarterial extracorporeal membrane oxygenation (V-A ECMO) in anticipation of high-risk "protected" percutaneous coronary intervention (PCI). Under full V-A ECMO support, inotropes and vasopressors were weaned off, and the patient underwent uneventful PCI of left circumflex and obtuse marginal lesions.

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Women in developing countries still face enormous challenges when accessing reproductive health care. Access to voluntary family planning empowers women allowing them to complete their education and join the paid workforce. This effectively helps to end poverty, hunger and promotes good health for all.

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Calcified nodules (CNs) are among the most challenging lesions to treat in contemporary percutaneous coronary intervention. CNs may be divided into 2 subtypes, eruptive and noneruptive, which have distinct histopathological and prognostic features. An eruptive CN is a biologically active lesion with a disrupted fibrous cap and possibly adherent thrombus, whereas a noneruptive CN has an intact fibrous cap and no adherent thrombus.

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Purpose Of Review: To provide a summary of prevalence, pathogenesis, and treatment of coronary calcified nodules (CNs).

Recent Findings: CNs are most frequently detected at the sites of hinge motion of severely calcified lesions such as in the middle segment of right coronary artery and left main coronary bifurcation. On histopathology, CNs exhibit two distinctive morphologies: eruptive and non-eruptive.

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Background: Placebo-controlled evidence from ORBITA-2 (Objective Randomised Blinded Investigation with Optimal Medical Therapy of Angioplasty in Stable Angina-2) found that percutaneous coronary intervention (PCI) in stable coronary artery disease with little or no antianginal medication relieved angina, but residual symptoms persisted in many patients. The reason for this was unclear.

Objectives: This ORBITA-2 secondary analysis investigates the relationship between presenting symptoms and disease severity (anatomic, noninvasive, and invasive ischemia) and the ability of symptoms to predict the placebo-controlled efficacy of PCI.

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Background: Complete revascularization of coronary artery disease has been linked to improved outcomes in patients with preserved left ventricular (LV) function.

Objectives: This study sought to identify the impact of complete revascularization in patients with severe LV dysfunction.

Methods: Patients enrolled in the REVIVED-BCIS2 (Revascularization for Ischemic Ventricular Dysfunction) trial were eligible if baseline/procedural angiograms and viability studies were available for analysis by independent core laboratories.

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Background: Unintended deformation of implanted coronary stents can lead to loss of coronary access, stent thrombosis and coronary events during follow-up. The incidence, mechanisms and clinical outcomes of unintended stent deformations (USD) during complex bifurcation stenting are not well characterized.

Objectives: In a prespecified analysis of the OCTOBER (European Trial on Optical Coherence Tomography Optimized Bifurcation Event Reduction) trial, we aimed to: 1) determine the incidence and characterize mechanisms of USD identified by optical coherence tomography (OCT); and 2) evaluate physician's detection and correction of accidental abluminal rewiring and USD.

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Exposure of the Hubble Space Telescope to space in low Earth orbit resulted in numerous hypervelocity impacts by cosmic dust (micrometeoroids) and anthropogenic particles (orbital debris) on the solar arrays and the radiator shield of the Wide Field and Planetary Camera 2, both subsequently returned to Earth. Solar cells preserve residues from smaller cosmic dust (and orbital debris) but give less reliable information from larger particles. Here, we present images and analyses from electron, ion and X-ray fluorescence microscopes for larger impact features (millimetre- to centimetre-scale) on the radiator shield.

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Background: The coronary sinus reducer (CSR) is proposed to reduce angina in patients with stable coronary artery disease by improving myocardial perfusion. We aimed to measure its efficacy, compared with placebo, on myocardial ischaemia reduction and symptom improvement.

Methods: ORBITA-COSMIC was a double-blind, randomised, placebo-controlled trial conducted at six UK hospitals.

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Our objective was to evaluate the clinical effectiveness of the SYNERGY stent (Boston Scientific Corporation, Marlborough, Massachusetts) in patients with ST-elevation myocardial infarction (STEMI). The only drug-eluting stent approved for treatment of STEMI by the Food and Drug Administration is the Taxus stent (Boston Scientific) which is no longer commercially available, so further data are needed. The CLEAR (Colchicine and spironolactone in patients with myocardial infarction) SYNERGY stent registry was embedded into a larger randomized trial of patients with STEMI (n = 7,000), comparing colchicine versus placebo and spironolactone versus placebo.

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Background: The role of ACTA2 mutations in Familial Aortic Disease has been increasingly recognized. We describe a highly penetrant variant (R118Q) in a family with aortic disease.

Case Report: A patient presented to us for elective repair of an ascending aortic aneurysm with a family history of his mother expiring after aortic dissection.

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Article Synopsis
  • A study was done to see if a procedure called PCI helps people with stable angina (chest pain) feel better than a fake (placebo) procedure.
  • 301 patients were divided into two groups: one had the PCI and the other had the fake procedure for 12 weeks.
  • The results showed that those who had PCI had better scores for their angina symptoms, meaning they felt less pain compared to the placebo group.
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  • The study aimed to evaluate the feasibility of a virtual proctoring method using audio-video communication during complex cardiac procedures.
  • Nine patients received percutaneous coronary interventions with guidance from a remote expert, with no major complications reported during or after the procedures.
  • The results suggest that virtual proctoring is a safe and effective method, allowing for expert collaboration across distances, potentially enhancing the development of complex cardiac procedures in the future.
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Background: Venous thromboembolism (VTE) incidence after thoracic and fenestrated endovascular aortic repair (TEVAR/FEVAR) is high (up to 6-7%) relative to other vascular procedures; however, the etiology for this discrepancy remains unknown. Notably, patients undergoing TEVAR/FEVAR commonly receive cerebrospinal fluid drains (CSFDs) for neuroprotection, requiring interruption of perioperative anticoagulation and prolonged immobility. We hypothesized that CSFDs are a risk factor for VTE after TEVAR/FEVAR.

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Background: The Synergy Megatron is an everolimus-drug eluting stent that may offer advantages in the treatment of aorto-ostial disease and large proximal vessels.

Aims: To report the short- to medium-term clinical outcomes from the European Synergy Megatron Implanters' Registry.

Methods: This registry was an investigator-initiated study conducted at 14 European centers.

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